The set will add in some more Conditions to the game, which are new for Wave X. They're not upgrades or such like that which are assigned at the start of the game. They, instead, stay in reserve and are put in play when a certain trigger happens. Fanatical Devotion lets you make sure a hit gets through to your opponent's ship when you need it. Meanwhile, I'll Show You The Dark Side makes it so when you get that critical, you get exactly the effect you want on the enemy ship. Certainly a couple of rather handy abilities to have.
Source